Alex Krischen Reservoir Report
Nearby: Marlo Johnson Chapman Dam
Last Updated: December 13, 2025
Alex Krischen is a privately owned dam located in Perkins, South Dakota, with a history dating back to its completion in 1951.
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Summary
This Earth-type dam stands at a height of 18 feet and has a length of 500 feet, providing a storage capacity of 53 acre-feet. Situated on the TRIB. SOUTH GRAND river, it falls under the jurisdiction of the South Dakota Department of Environment and Natural Resources (DENR), with state-regulated permitting, inspections, and enforcement in place to ensure its safety and compliance.
With a low hazard potential and a current condition assessment of "Not Rated," Alex Krischen dam serves as a crucial water resource infrastructure in the region. Despite lacking detailed data on its spillway type, outlet gates, and other structural features, the dam continues to play a role in flood control, water storage, and potentially irrigation purposes. The dam's location within the St. Paul District and its association with Dusty Johnson (R) as the Congressional representative add further layers of interest to its story for water resource and climate enthusiasts.
As an essential part of the local water management system, Alex Krischen dam warrants continued attention and monitoring to ensure its resilience in the face of changing climate patterns and evolving regulatory standards. With its relatively modest storage capacity and low hazard potential, the dam represents a vital piece of infrastructure in the management of water resources in Perkins, South Dakota. Its history, design characteristics, and regulatory oversight make it a fascinating subject for those interested in the intersection of water resource management and climate resilience.
Year Completed |
1951 |
Dam Length |
500 |
Dam Height |
18 |
River Or Stream |
TRIB. SOUTH GRAND |
Primary Dam Type |
Earth |
Hydraulic Height |
18 |
Nid Storage |
53 |
Hazard Potential |
Low |
Nid Height |
18 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Dam Data Reference
Condition Assessment
SatisfactoryNo existing or potential dam safety deficiencies are recognized. Acceptable performance is expected under all loading conditions (static, hydrologic, seismic) in accordance with the minimum applicable state or federal regulatory criteria or tolerable risk guidelines.
Fair
No existing dam safety deficiencies are recognized for normal operating conditions. Rare or extreme hydrologic and/or seismic events may result in a dam safety deficiency. Risk may be in the range to take further action. Note: Rare or extreme event is defined by the regulatory agency based on their minimum
Poor A dam safety deficiency is recognized for normal operating conditions which may realistically occur. Remedial action is necessary. POOR may also be used when uncertainties exist as to critical analysis parameters which identify a potential dam safety deficiency. Investigations and studies are necessary.
Unsatisfactory
A dam safety deficiency is recognized that requires immediate or emergency remedial action for problem resolution.
Not Rated
The dam has not been inspected, is not under state or federal jurisdiction, or has been inspected but, for whatever reason, has not been rated.
Not Available
Dams for which the condition assessment is restricted to approved government users.
Hazard Potential Classification
HighDams assigned the high hazard potential classification are those where failure or mis-operation will probably cause loss of human life.
Significant
Dams assigned the significant hazard potential classification are those dams where failure or mis-operation results in no probable loss of human life but can cause economic loss, environment damage, disruption of lifeline facilities, or impact other concerns. Significant hazard potential classification dams are often located in predominantly rural or agricultural areas but could be in areas with population and significant infrastructure.
Low
Dams assigned the low hazard potential classification are those where failure or mis-operation results in no probable loss of human life and low economic and/or environmental losses. Losses are principally limited to the owner's property.
Undetermined
Dams for which a downstream hazard potential has not been designated or is not provided.
Not Available
Dams for which the downstream hazard potential is restricted to approved government users.
Alex Krischen